Hi all,
Since r265398 (combine: Do not combine moves from hard registers), the bfxil
scan in gcc.target/aarch64/combine_bfxil.c has been failing.
FAIL: gcc.target/aarch64/combine_bfxil.c scan-assembler-times bfxil\\t 13
This is because bfi was generated for the combine_* functions in the
above test,
but as of r265398, bfxil is preferred over bfi and so the bfxil count has
increased. This patch increases the scan count to 18 to account for this so
that the test passes.
Before r265398
combine_zero_extended_int:
bfxil x0, x1, 0, 16
ret
combine_balanced:
bfi x0, x1, 0, 32
ret
combine_minimal:
bfi x0, x1, 0, 1
ret
combine_unbalanced:
bfi x0, x1, 0, 24
ret
combine_balanced_int:
bfi w0, w1, 0, 16
ret
combine_unbalanced_int:
bfi w0, w1, 0, 8
ret
With r265398
combine_zero_extended_int:
bfxil x0, x1, 0, 16
ret
combine_balanced:
bfxil x0, x1, 0, 32
ret
combine_minimal:
bfxil x0, x1, 0, 1
ret
combine_unbalanced:
bfxil x0, x1, 0, 24
ret
combine_balanced_int:
bfxil w0, w1, 0, 16
ret
combine_unbalanced_int:
bfxil w0, w1, 0, 8
ret
These bfxil and bfi invocations are equivalent, so this patch won't hide any
incorrect code-gen.
Bootstrapped on aarch64-none-linux-gnu and regression tested on
aarch64-none-elf with no regressions.
OK for trunk?
gcc/testsuite/Changelog:
2018-12-19 Sam Tebbs <sam.te...@arm.com>
* gcc.target/aarch64/combine_bfxil.c: Change
scan-assembler-times bfxil count to 18.
diff --git a/gcc/testsuite/gcc.target/aarch64/combine_bfxil.c
b/gcc/testsuite/gcc.target/aarch64/combine_bfxil.c
index
84e5377ce9a10953f50b7c13ed06563bef014a55..109f989a2f0b68ce65509a38a82e8fd819f45a19
100644
--- a/gcc/testsuite/gcc.target/aarch64/combine_bfxil.c
+++ b/gcc/testsuite/gcc.target/aarch64/combine_bfxil.c
@@ -114,4 +114,4 @@ main (void)
return 0;
}
-/* { dg-final { scan-assembler-times "bfxil\\t" 13 } } */
+/* { dg-final { scan-assembler-times "bfxil\\t" 18 } } */
